agentskit.js
Packages

@agentskit/observability

Trace viewer, signed audit log, cost guard, devtools, token counters.

When to reach for it

  • You need console / LangSmith / OpenTelemetry logging.
  • You want an offline HTML trace viewer.
  • You want a hard dollar ceiling (costGuard).
  • You want a tamper-evident audit log (SOC 2 / HIPAA friendly).
  • You want a live devtools feed (browser extension compatible).

Install

npm install @agentskit/observability

Hello world

import { consoleLogger, costGuard } from '@agentskit/observability'
import { createRuntime } from '@agentskit/runtime'

const runtime = createRuntime({
  adapter,
  observers: [consoleLogger(), costGuard({ maxUsd: 0.5 })],
})

Surface

  • Loggers: consoleLogger · langsmith · opentelemetry.
  • Tracing: createTraceTracker · createFileTraceSink · buildTraceReport · renderTraceViewerHtml.
  • Cost + tokens: costGuard · priceFor · computeCost · DEFAULT_PRICES · approximateCounter · countTokens · countTokensDetailed · createProviderCounter.
  • Audit: createSignedAuditLog · createInMemoryAuditStore.
  • Devtools: createDevtoolsServer · toSseFrame.

Recipes

Stability

  • Version: 0.5.1
  • Tier: beta
  • Contract: evolving
  • Roadmap: see packages roadmap for what this package needs to reach v1.0.

Source

npm: @agentskit/observability · repo: packages/observability

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@agentskit/skills

Ready-made personas + composition + marketplace registry with semver.

@agentskit/eval

Eval suites + deterministic replay + snapshot testing + prompt diff + CI reporters.

On this page

When to reach for itInstallHello worldSurfaceRecipesStabilityRelatedSource